[GHC] #1085: Redesign of the scheme for getting the datacon symbol name of a closure in the RTS

[GHC]

#1085: Redesign of the scheme for getting the datacon symbol name of a closure in
the RTS
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    Reporter:  mnislaih          |       Owner:         
        Type:  task              |      Status:  new    
    Priority:  normal            |   Milestone:  6.8    
   Component:  Runtime System    |     Version:  6.6    
    Severity:  normal            |    Keywords:         
  Difficulty:  Moderate (1 day)  |    Testcase:         
Architecture:  Unknown           |          Os:  Unknown
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Currently, from the closure we get its info table address, and since those
 are static for Constr closures, we use a hashtable (defined in Linker.c)
 to relate symbol names obtained when linking and the addresses.

 The proposal is to extend the info table with a field for the symbol name,
 making this process much more straightforward.
 The trade-off is that this will augment the size of binaries a bit, so we
 could make this 'labelling' of info tables optional via a flag.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1085>
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